Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 896 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.87 × 89 =
2. 2.205 × 204 =
3. 3.202 × 206 =
4. 4.494 × 492 =
5. 5.299 × 295 =
6. 6.24 × 22 =
7. 7.198 × 194 =
8. 8.297 × 293 =
9. 9.396 × 396 =
10. 10.86 × 88 =
11. 11.406 × 405 =
12. 12.18 × 18 =
13. 13.59 × 58 =
14. 14.36 × 38 =
15. 15.507 × 502 =
16. 16.39 × 38 =
17. 17.494 × 495 =
18. 18.599 × 592 =
19. 19.402 × 403 =
20. 20.495 × 499 =
21. 21.505 × 509 =
22. 22.206 × 209 =
23. 23.44 × 44 =
24. 24.593 × 595 =
25. 25.29 × 28 =
26. 26.28 × 28 =
27. 27.491 × 498 =
28. 28.592 × 594 =
29. 29.293 × 292 =
30. 30.23 × 22 =
31. 31.74 × 74 =
32. 32.79 × 79 =
33. 33.28 × 29 =
34. 34.43 × 41 =
35. 35.498 × 498 =
36. 36.62 × 61 =
37. 37.306 × 305 =
38. 38.196 × 191 =
39. 39.491 × 499 =
40. 40.28 × 28 =

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